The highest contrast ratio of the Akoya X58320 is 40000000:1. That's over twenty times the contrast ratio of the most common dynamic contrast ratio of 2000000:1. Across all new LCD screens the worst contrast ratio is Ultra Contrast and the best is 50000000:1.
Alternative LCD screens that have a 40000000:1 dynamic contrast ratio currently available that you might want to consider include the Philips BDM3470UP (£507.35) which has a better Rating.
Flatpanel monitors with a higher contrast ratio that might also be worth looking at include the Asus VB178D (50000000:1), or the Hannspree HE196APB (£56.11) (50000000:1).